After the wheel stops at "rare" another wheel will be spun, this one has all possible rare items. The ring increases the chances of RS gold finding good rare items. The ring is also referred to as "wealth" because it makes rarer items more common. If you still don't get this. If you still don't get it, I recommend playing neopets or PMing to me to provide a different instance. The rumor that the ROW had an opposite effect on boss monsters was untrue. There is no reason to believe it.
Despite the tireless work of Chart-Track, NPD, Chart-Track, and other sales analysts for games are in the past, unable to track anything beyond physical, packaged products. This cheap OSRS gold is a circumstance that allows digital distribution and free to play models a huge success.